Is this long Covid or depression or Major Depressive Disorder (MDD)? Because in her earlier videos she talks about becoming bed-bound again due to her emotional state after finding news her friend who had a similar condition died.

As someone who suffers from a complex autoimmune disorder which has caused dysautonomia and suspected mitochondrial dysfunction, stress flares and exacerbates symptoms. This has a physiological basis in the complex way the HPA axis/cortisol affects us at the cellular level. My primary diagnosis is sarcoidosis with small fiber neuropathy, but they don’t fully understand all the mechanisms of auto-immune fatigue and dysregulation.

It was essentially long covid. me/cfs or chronic fatigue syndrome induced by covid infection

Long Covid and ME/CFS can make you fragile. At least it has for me. I never used to get emotionally overwhelmed, now I do. I don't have it as bad as she does, but I've been bedbound because of this. And being sick for months to years, already leaves you feeling on the brink of depression.

Dunno, personally I don't think its that much of my business. Sure I'm curious, but that doesn't mean I have a right, or that its a nice thing™ to publicly speculate

I'm quite sure being that terribly sick could cause depression yeah, but that's not the reason